Pile driving apparatus



Se t. 22, 1931. G, M, NELL 1,824,617:

PILE DRIVING APPARATUS Filed Nov. 16, 1 928 2 Sheets-Sheet l D r f 15 ff .4 /(A 7 z 7 a 6 7g /0 I l I 7 i l j w -.-l b $76 I WW 605M 12 $32 11 1 BY A TTORNE Y.

G. M. NELL Sept. 22; 1931.

PILE DRIVING APPARATUS 2 Sheets-Sheet 2 Filed Nov. 16. 1928 H mm w 1 BY Lg? Patented Sept. 22, 1931 I 1 UN UsrAvE iiL NEI iL, or semen, urcmeamnsszenon 'ro CHICAGO PNEUMATIC TOOL COMPANY, on NEW YORK, N.-{Y;, A coaronamon on NEW JERSEY r nn nnlvm e APPARATUS f pea e med-masher is, 1. 328. s arm-319.789.

This invention relates toapparatus for driving piles, posts,-stakes,-etc.r and more particularly to apparatus which is "adaptable for use-with percussivejhammer type machines not ing."

One object of the invention isto provide improved accessory apparatus for pile driv- 10 replacement of parts 7 which may ,become broken or damaged in service. Another ob ject is to provide for application of the apparatus to a percussive machine in more than one position so that theposition 'bestsulted to the work may be's'elected. Still another Object is to prevent'loss of driving power when the percussive machine becomes tilted in relation to the work. Other ObJ'GCtS Wlll be ap parent from the detailed description which follows.- a i.

In order to illustrate the invention concrete embodiments thereofare shown 'in accompanying drawings, in which: I

Fig. 1- is a vertical sectional -yiew of the; apparatus applied to; a percusslve machlne which islargely broken away, certain parts being shownin elevation';:

Fig. 2 is an elevational view ofthe' right-* hand side of the lower portion of 'the apparatus shown in'Fig."1 Fig. 3 is a sectional VlGW generally similar to Fig. 1 disclosing a'modification;

front'head shown inFigs'. 1 and 3.

The pile drivingapparatus herein C115? closed takes the form of anr'atta'chment applicable to certain percussive machmes of the fluid pressure typesu'chasqpneumatic:

suitable means 'such-a s'bolts 10, and 'anianvil block 11 mounted in the jbore'of the front head 7;" As shown in Fig. 1, f-ront head 7 has a reduced portion-7a adapted: for teleside r'ods or through bolts C'whichhold the. parts; of the lation. backhead-D carrying manual supportin ing. Anoth r object is to permit convenient If primarily 'inte'nded for pile driv- ,which permit -sive machine. lower ser es of the scoping engagement'withinfthe-front end of cylinder A of a fluid pressure tool having'an lmpact memberor-piston B. Head 7 has perforated ears 7?) through which extend the" Head 7, below ears 7b, is of polygonal shape in cross-section or plan, asindicated at 1 percuss1ve tool" n assembled re- Fig. 43 By preference it is square in shape and has axial'grooves 7c (Figs. 1, 3,'and the i, insertion of I side rods whenthehead is assembled upon the percustransverse' bores 7d for bolts -H ead 7 also hasyupp'er and lO,'t'heupper and lower series intersecting one another at right angles so that cheek] plates 8 and9 can be secured t t o eitherpair of opposing faces of'the polygonal portion of n members 7 as desired.

Cheek plates 8 and 9,'shown in-Fig. 1, form a front head extension, as indicated, and each has reverseb'ends atx12 and-13 respectively forming retaining-shoulders which prevent} the loss or ejection" of anvil block 11. The restricted opening between cheek plates 8" and 9 beneath the bendsprovides a recess 01' socket adapted to receive the pile, post, or

other object 0 upon which the workis to be 5 performed, Either of the cheek plates,=such Figs. 4, 5 and 6 are plan and-side eleva tional views taken at anglesof 90 of the q as 8, maybe bent to provide a rest'or step'I l upon which the operator mayplacehis foot' or bear his weight to assist in the driving of member 0. V I

The upper or offset portions of thecheek plates 8 and 9 are clamped againstv the ,se-

front head 7 by bolts 10, are provided for these bolts in the as indicated. Means preventing the shearing of event that the same are not .le'cted'sides of the polygonal portion of secured tightly or Work loose in service. Such means preferably take the form of acooperating lug or rib and socket arrangement ;on the head 7 and cheek plates 8 and 9. In {the present instance thecheek plates each w have-a, single lug orrib, 1 5"and lfi'respec tively,' intermediate the upper and lower seriesiofholes'for bolts 10, such-lugs or ribs recesses 17 and 18 respectively (Figs. 1 and to'said machine and, an janvilv-block su'pported:

15 11b slidably received in coo'peratings'lot and-.1

2) which receive the heads, of the side rods C and loo ment.

The modification of the invention shown 10 iit-Fi'g 3 isa sinii-lar inall-respects 'to'that the objeot- -to -be drivenr anvil bloek lla;

shown in Fig-W1 save th-at: has additional guiding and retaining means associated with the cheek plates'8a' and 9a, such means comprising extensions onbosses s 81) and 9b of the respective cheekplates;

k. the same against turning imoyecured to said machine and having a poly onal portion and having a bore therethrough, an anvil block having a stem movably mounted in said head and arranged to receive the blows of said element, and extension means fon'said head'attachable at will to anyofz the'gopposite pairsaofi sides of'said polygonal portion to provide uide and retainer means for said block anc asocket for V 3. 11! apparatus -foi d andthelike including a percussive machine having ani'm'pact element, a front head semllfei s d m ohineand having a p yg portion and a bore therethrough, an anvil bleak aving-a-est m mev b y mounted i s i From: theiabovezit will-beapparent that headand arranged: to receive the. blows; of;

feature of the polygonal portiononthe fron irgsaid element, iplates-rseoulzedi-to opposite sideshead with the cooperating: cheek plates whieha :of said polygonal.- portion; to provider an. ex? V I maybersecuredtor any opposed pair of faces ==tension .for said; head forminga soeketsfor off the vpo lygonal, port-ion; permit the; 218881111 bly-of the front head extension-aapon a peri t-es I 35 fhe through -bolts :so lth-at thespart s of ethei said polyg percussivemachine- ;.cannot; becomeg-loosfiwin 1 service. An ad fact-that thelower face of;e;ith1er;aILVil-;=block 11;:qm1-1a ,is arranged-to ;be1-roundedaas indie ='cate ,d;'a t-,19,('Figs. ;l and-'3) sothatgevenif the; machine (becomes :tiltedsomewhat} upon: 1 the )ile; the foreeof the blow struck-by: is transmitted :tOrrthQ pilegby'; bloclr -withQut .-materialzloss. While preferred; forms? of have been eherein shown iand described; it is to --,be understood,that; the (invention-is not i li mited to the specific details thereof; but; gov-t ers all 1-, changes, modifications, 1, and :adaptaw thB n anvilclaims.

I claimias myinventionra 7 1,, In apparatus for --pil;e=-,driving1 Iandthe Y like including a percussive imachineahav-ing an; impact element With {a front head secured by;.;saidrhea-dzgand arranged to receive the bl-owsnof; said element, means for: adjustable attachmenttovsaid head to-form a which f ditional feature: lies rin -the:-

the pistonn can niextensiomhavingna ngsmeans {for-said .bloclg and inter engaging gu 1de meanson SillClgblOCk andataleastone of; ;sa d;\p1ates compr sing ;a pro eot1onzion sa d- -piles, posts; 1, percussive machines rthe object to be driven and guide and retains;

ject-O, such blockslidably-received in-an axial; recess or ,;-hav-ing an: impact; -element-,- a :front head se I soured tosaidniachine and having block havinga stenrmovablly)mounted-in said-.1 headland;arrangethtoreceive the-,b1o ws of said element, plates-,1 secured; tDlrOPPOSlWfij-d-GS :of n onal portion to provide an -axial,; 1 extension :forsaidzhead, ;one of saidv plates having aneinwandly offset; part; beyondysaid head to provide-a retainer wal-ly for saidiblookv and; cooperating-with the fothereplate to pro;- vvideia socketrforitheobject togberdriven having-:an impactaelement a iro-nt headsea polygonal plate portion and i a bore therethrough an; anvil Q1 5. In apparatus wfor; driv ng piles, eposts, d the like lnCllldlIlggfiPGICUSSiVQRHlfiChlHQ cured tofsaid machine and having; alpolyg- 0fsaid-elementyiplafies secured-to the outer insides; of said polygonal @pontion-'toqipigovide- 50, tionsLwitlrin-i theg scope ;-,of 'the appended};

shearing ofjrsaid membersai 6.; 21ndapparatus-don drivingi pilesy posts} ion-said shead sand saidi plates; for,=-;-preventingd head and:arrangsdto:reeeiveithe blows, I

d; the} like I'l-IiOlUdlHg a; percussive machine :4 ni-.1n1pact:element;-;-a front head use-= they in-ventiom,ronal portion and a bore therethnouglgmn said blockictransverse: membersgsecuringsaid 1; fplfiileslfto: saldfihefldtiJillld, cooperat ng ;means.

pilegto be?driven;disposed-either inlline with;

or -atgan-angle to'thesuppontfor said machine; 2. II1: QIPPRIHSUS;;:fOli'r driving; pllesgi posts,

e likefineludingga percussive-l machine 55 hay ng.anampact; element a front; head elseon block havinga stem movablyi mounted in: the: X5 -,bore( o'f' said head and 1; arranged; &to: receive i, the blows-of said e1ement,: che.ek plates sewred-to a pain of outer faces-of saidbpolyg 1am lGO onal portion to provide an axial extension for said head forming a socket for the object to be driven and guide and retaining means for said block, transverse securing members extending through said head and said plates, and cooperating lug and recess means on said head and said plates to prevent shearing of said securing members.

7. In pile driving apparatus including a percussive machine having an impact piston, a front head secured to said machine and having a polygonal portion extending therebeyond with an axial bore therethrough, an anvil block having a stem received in said bore and a head beyond said polygonal portion, cheekplates secured to a selected pair of opposite faces of said polygonal portion to provide an extension inclosing said anvil head, said plates being shaped to provide a restricted socket for the object to be driven and a retaining shoulder for said piston head, and transverse securing members extending through said head on opposite sides of said bore and through said plates.

8. In a fluid pressure percussive machine of the portable type having a cylinder, an impact piston reciprocable therein, and a front head having perforated ears with through bolts extending through said ears for securing said head to said cylinder, said head beneath said ears being square and having axial grooves to permit the insertion of said bolts, and cheek plates secured to said head over said grooves and arranged to lock the heads of said bolts against turning.

9. In a fluid pressure percussive machine of the portable type having a cylinder, an impact piston reciprocable therein, and a front head having perforated ears with through bolts extending through said ears for securing said head to said cylinder, said head beneath said ears being square and having axial grooves to permit the insertion of said bolts, and cheek plates secured to said head over said grooves and having notches or recesses receiving the heads of said bolts to hold the same against turning.

10. A front head for a port-able percussive machine for adapting the latter to drive piles, posts, and the like, said head having a cylinder engaging part provided with perforated ears to receive the through bolts of the machine and a polygonal portion, said head having an axial bore therethrough to receive the stem of an anvil block, said polygonal portion being arranged to have cheek plates secured to a pair of the outer sides thereof to form an axial extension of inder engaging part provided with perforated ears to receive the through bolts of the machine and a polygonal portion, said head having an axial bore therethrough to receive the stem of an anvil block, said polygonal portion being arranged to have cheek plates secured to a pair of the outer sides thereof and having transverse bores through the solid portions thereof on opposite sides of said bore for bolts to hold the plates in place, said polygonal portion also having transverse recesses in the exterior thereof to receive projections on the cheek plates intended to prevent shearing of the bolts.

12. A cheek plate adapted to be secured to the front portion of a portable percussive machine, said plate havinga bend providing oflset portions in parallelism, one of said portions being adapted to engage said machine and having spacedrows of holes therethrough for bolts, a transverse lug or rib between said rows of holes to engage a complementary recess on the machine, the other portion of the plate being adapted to engage the work and the bend to form a retaining shoulder for an impact member on the machine.

13. In apparatus for driving piles and like objects having fiat tops, a percussive machine having a cylinder and an impact element reciproca-ble therein, a front head structure providing a chamber for receiving the upper end of the object to be driven, and a single member movably supported by said structure andcomprising the sole means for transmitting the blow of said impact element to the flat top of the object, said member having an enlarged elongate head disposed in the upper end of said chamber having a curved lower face to rest directly upon the flat upper face of the object so as to deliver the blow thereto without substantial loss of force even if the machine engages the object at an angle.

Signed by me at Detroit, in the county of Wayne and State of Mich, this 13th day of November, 1928.

GUSTAVE M. NELL.

said head, said polygonal portion having 7 transverse bores through the solid portions thereof on opposite sides of said bore for securing members to hold the plates in place.

11. A front head for a port-able percussive machine for adapting the latter to drive piles,

1 posts, and the like, said head having a cyl- 

